SIL 2 Temperature Signal Converter to Trip Amplifiers – D5273S
The single channel Temperature Signal Converter, Trip amplifiers D5273S accepts a low level dc signal from millivolt, thermocouple or 2-3-4 wire RTD or transmitting potentiometer sensors, located in Hazardous Area, and converts, with isolation, the signal to drive a Safe Area load, suitable for applications requiring SIL 2 level (according to IEC 61508) in safety related systems for high risk industries.
Output signal can be direct or reverse. Output function can be configured as: Adder, subtractor, low/high selector. Modbus RTU RS-485 output is available on Bus connector. Cold junction compensation can be programmed as automatic, using an internal temperature sensor or fixed to a user-customizable temperature value.
D5273S offers two independent trip amplifiers via two SPDT output relays. Mounting on standard DIN-Rail, with or without Power Bus, or on customized Termination Boards, in Safe Area or in Zone 2.
Hazardous area:
Millivolt or thermocouple type A1, A2, A3, B, E, J, K, L, LR, N, R, S, T, U, or 2-3-4 wire RTD Pt50, Pt100, Pt200, Pt300, Pt400, Pt500, Pt1000 (IEC), Pt100 (ANSI 0.3916), Ni100, Ni120 (DIN43760), Pt46, Pt50, Pt100, Pt200, Pt300, Pt400, Pt500, Cu50, Cu53, Cu100 (GOST6651 russian standard) and Cu9.035 (or Cu10), or 3 wire transmitting potentiometer (100 Ω to 10 kΩ). Choice between °C/°F. Possibility of configuring user customized sensor (TC or RTD).
Safe area:
Fully customizable 0/4 to 20 mA. Modbus available.
- D5273S SIL 2 according to IEC 61508 for Tproof = 5 years (10 % of total SIF)
- Input from Zone 0 (Zone 20), installation in Zone 2
- mV, thermocouple, 2 or 3 or 4 wire RTD or transmitting potentiometer Input Signal
- 2-wire RTD line resistance compensation
- Internal Reference Junction Compensation automatic or fixed (programmable value)
- Fastest integration time: 50 ms
- 4-20 mA Output Signal temperature linear or reverse
- Modbus RTU RS-485 Output
- Two independent Trip Amplifiers each with SPDT relay contacts 4A 250 Vac 1000VA
- Multiple Fault detection
- High Accuracy, μP controlled A/D converter
- Three port isolation, Input/Output/Supply
- EMC Compatibility to EN61000-6-2, EN61000-6-4, EN61326-1, EN61326-3-1 for safety system
- Fully programmable operating parameters
- ATEX, IECEx Certifications
- High Density, one Analog Output + two Alarms
- Simplified installation using standard DIN-Rail and plug-in terminal blocks, with or without Power Bus
- 250 Vrms (Um) max. voltage allowed to the instruments associated with the barrier
SIL Level:
D5273S, according IEC 61508 & IEC 61511, is suitable for applications up to safety integrity level SIL 2.
D5273S Datasheet